Improvement in looms



time om' `fication, in which-x @with %m5 WILLiAMn. Booznn; or lro'rrnns MILLS, PENNSYLVANIA.

Lentement No. 112,679, 1aed March 14,v 1871.

i To alltvhomfit may concerti:

the accompanyingdrawing making a part of this specii Figure 1 represents, in perspective, somuch of a `loomaslwll illustrate my invention.

p Figure? represents a sideview of patternchain and .its cooperative parts.

. i `Figure 3A represents aside view of oneof the patternicliain guide-pieces. My invention consists in a pattern-chain or a series of pattern-,chains .forylooms for weaving iguied fabrics, composed of a series of `links united into a chain, which ismoved over or` around guiding-`surfaces, and the links` of which pattern-chainare furnished with grooves in theirsides for L operating horizontal .levers thatin turn operate vertical levers for operatingthe harness, and which links are lsusceptible of diierent arrangement ,tovchange the gure of the fabric, as

" Ymaybe desired, ,within the capacity of theloom.

".lo enable others `skilled `in the art to make and i 1 use my invention, I will proceed to describe the same fwithireference to the drawing.

On ashai't, A, suitably hung inthe loom-frame IB, and n1ove'd .by` any wellknown means and power, is

arranged any suitable number of chain-carrying and supporting-.wheels or disks ira-having depressions a a l `in their perimeter for receiving, holding, andfreely i releasing the` shafts orjournalsc c c, 85e., on which the links e and `blocks f-of the pattern-chain 'turn when movingaround with said wheels ordisks. And `that the 1 pattern-chain, as a whole, may move `in an yelongated 'Gironi-aand not in-a circle, guide-.pieces D are aixed to the frame, against the outer edge g g g of which the projecting ends of the shafts or journals c. take, and are so guidedin such elongated path aided by an upperseries of carrying disks o.

`The blocks or sections fthat compose tbe patternchain are united by the links e, the'shafts c being the pivotal `center of each. u

dnthe sides of theseblocks or sections are formed angular orvcurved grooves 'i i, in which astrid or pin,

`with `or without'a friction-roll, on theendsof` each of the horizontal levers E E, 85e., work, and. by which said levers receive 'a reciprocating motion in the line 1 VnuPuovizwlitNT 1N Looms.

:The Schedule referred to in these Letters Patent andimakng part of lthe same.

of their length, which is governed entirely by the 4 E by the pattern-chain shall cause the'levers F to vibrate'on their shaft on. Tov the upper ends of the leversl the harness is fastened, by cords passingA over pulleys or in any other wellknown way, for working the`harness and warps in them.

The grooves a) in the blocks or sections f may4 be ordinary plain ones, or dovetailed, or undercut, so as to receive a headed stud orpin; but a simple groove, with ordinary guiding or controlling devices, will serve every purpose. e

Any number of these pattern-chains may be used on a loom, the liumberoorresponding with the harness to be used or the varied figures ofthe goods to be woven in the loom, and the grooves in the sections j', or the sections themselves, being selected and arranged for such figures.

While the edges y of the guidepieces D hold the projecting ends of the chain-shafts or journals einA one direction, flanges or strips nVA u on the frame guide them in the-lopposite direction, so that the chain must travel in its true path or circuit.

` On the left of g. 2'the grooves in the blocks alternate, so as to cause a uniform traverse of .the levers E. n

' On the right of said figure the sections f'f' are shown as in pairs, so that the traverse of the levers would be only half as much as in the alternate arrangement. Theycan be arranged in any other combinations desired.

Having thus iullyrdescribed my invention,

lWhat I claim therein as new and desire to.secure by Letters. Patent, is-

The pattern-chain for looms, composed oi' blocks or sections linked together and grooved in the sides, and operating to move the harness through levers`intervened for that purpose, substantially as described and represented. 

